Multicondition redirect from first subpage of category to main page of category

Multicondition redirect from first subpage of category to main page of
category

We have URLs like this
site_com/category
site_com/category?page=1
site_com/category?page=2
The page for first and second URLs are the same. I need to create 301
redirect from ?page=1 to /category, besides "category" is a variable.
I've try this:
RewriteCond %{REQUEST_URI} [a-z]
RewriteCond %{QUERY_STRING} ^page=1$
RewriteRule ^%1%2$ site_com/%1 [R=301,L]